A family was on vacation at a farm. During their stay at the farm, a little calf was born. The family immediately fell in love with the little calf with the long eyelashes. They named her Kathi and visited her every day. As the vacation drew to a close, the family learned that Kathi would soon be leaving the farm - for an uncertain future. The daughters wanted to prevent this, sacrificed their piggy banks and were prepared to buy the calf's freedom with their pocket money. This commitment impressed Dieter Ehrengruber and he agreed to take in both Kathi and Franziska.